Merge pull request #3375 from lenboo/132

[BUG-3324][SERVER]: there exists some problems in checking task dependency

dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/master/runner/MasterExecThread.java

@@ -663,37 +663,58 @@ public class MasterExecThread implements Runnable {
         if(startNodes.contains(taskName)){
             return DependResult.SUCCESS;
         }
-
         TaskNode taskNode = dag.getNode(taskName);
         List<String> depNameList = taskNode.getDepList();
         for(String depsNode : depNameList ){
             if(!dag.containsNode(depsNode)
-                    || forbiddenTaskList.containsKey(depsNode)
-                    || skipTaskNodeList.containsKey(depsNode)){
+                    || forbiddenTaskList.containsKey(depsNode)){
                 continue;
             }
-            // dependencies must be fully completed
+            if(skipTaskNodeList.containsKey(depsNode)){
+                return DependResult.FAILED;
+            }
+            // all the dependencies must be completed
             if(!completeTaskList.containsKey(depsNode)){
                 return DependResult.WAITING;
             }
             ExecutionStatus depTaskState = completeTaskList.get(depsNode).getState();
-            // conditions task would not return failed.
-            if(depTaskState.typeIsFailure()
-                    && !DagHelper.haveConditionsAfterNode(depsNode, dag )
-                    && !dag.getNode(depsNode).isConditionsTask()){
-                return DependResult.FAILED;
-            }
-
             if(depTaskState.typeIsPause() || depTaskState.typeIsCancel()){
                 return DependResult.WAITING;
             }
+            // ignore task state if current task is condition
+            if(taskNode.isConditionsTask()){
+                continue;
+            }
+            if(!dependTaskSuccess(depsNode, taskName)){
+                return DependResult.FAILED;
+            }
         }
-
         logger.info("taskName: {} completeDependTaskList: {}", taskName, Arrays.toString(completeTaskList.keySet().toArray()));
-
         return DependResult.SUCCESS;
     }
 
+    /**
+     * depend node is completed, but here need check the condition task branch is the next node
+     * @param dependNodeName
+     * @param nextNodeName
+     * @return
+     */
+    private boolean dependTaskSuccess(String dependNodeName, String nextNodeName){
+        if(dag.getNode(dependNodeName).isConditionsTask()){
+            //condition task need check the branch to run
+            List<String> nextTaskList = parseConditionTask(dependNodeName);
+            if(!nextTaskList.contains(nextNodeName)){
+                return false;
+            }
+        }else {
+            ExecutionStatus depTaskState = completeTaskList.get(dependNodeName).getState();
+            if(depTaskState.typeIsFailure()){
+                return false;
+            }
+        }
+        return true;
+    }
+
 
     /**
      * query task instance by complete state